What is the advantage of pareto chart over other charts?

The Pareto chart emphasizes the 80/20 rule. It helps strategy data to uncover the most important issue to work on.
The saying goes 80% of the problems come from 20% of the causes.
It helps to narrow down a course of action by finding the 20%.

80% of traffic comes from accidents (of course you need data to support your hypotheses. You may be surprisedcould it be because of slow drivers, obstacles on the highway, weather

Um what? rephrase that ?

Pp= 50 pounds of apples